Ray Model0 pages
HYDROMETER
nnnnDATASHEET - COMPACT HEAT METER / COOLING & HEAT METER
nnnnMODEL 447 TO 452__________________________________________________________
nnnn22.52
nnnn00.02
nnnnBR 447 M-MKWZ
nnnnBR 450 M-MKKWZ
nnnnEN 1434
nnnnBR 448 M-TWZ
nnnnBR 451 M-TKWZ
nnnn01.02
nnnnBR 449 WS-TWZ
nnnnBR 452 WS-TKWZ
nnnnAPPLICATION
nnnn□ Fully electronic compact heat meter or compact cooling &
nnnnheat meter with impeller scanning for recording energy
nnnnand volume data.
nnnn□ Highly accurate recording of all billing data in a heating
nnnncircuit or a cooling & heating circuit at medium tempera-
nnnntures up to 90 °C.
nnnn□ Horizontal and vertical installation, also overhead for Model
nnnn447/450.
nnnnFEATURES
nnnn□ Electronic sensor control for recording flow rate
nnnn□ Nominal size qp 0.6 to qp 60 m3/h
nnnn□ Temperature range 5 °C...90 °C
nnnn□ Model 447/450 with direct electronic impeller scanning
nnnnModel 448/449/451/452 with magnetic coupling for elec
nnnntronic scanning of sensor disc
nnnn□ Lithium battery guarantees longer lifetime than calibration
nnnninterval
nnnn□ Optical ZVEI interface equipped as standard
nnnn□ Primary interface
nnnn■ Optional: M-Bus interface to EN 1434-3
nnnn■ Optional: L-Bus output for HYDRO RADIO external
nnnn■ Optional: Pulse output for energy and volume for heat
nnnnmeter
nnnnPulse output for cold and heat energy in cool
nnnning & heat meter (open-collector)
nnnn□ Adjustable reading date for billing
nnnn□ Rotatable integrator
nnnnCOMPONENTS
nnnn□ Volume measuring component
nnnn□ Integrator, contains hardware and software for measuring
nnnnflow rate, temperature and energy consumption
nnnn□ Temperature sensor permanently connected in integrator
nnnnINTEGRATOR
nnnn□ Integration of all necessary circuits for recording flow rate
nnnnand temperature and for calculating, logging and display-
nnnning data
nnnn□ Compact design for simple installation of units
nnnn□ Single-line, 7-digit display for easy meter reading
nnnn□ The first memory in the cooling & heat meter, calibrated for
nnnncold
nnnn□ Power supply from built-in lithium battery
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